| 有机胺功能化介孔固体吸附剂吸附分离CO2性能研究 |
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| 引用本文： | 何凯武,唐思扬,刘长军,岳海荣,梁斌. 有机胺功能化介孔固体吸附剂吸附分离CO2性能研究[J]. 化工学报, 2018, 69(9): 3887-3895. DOI: 10.11949/j.issn.0438-1157.20180336 |
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| 作者姓名： | 何凯武 唐思扬 刘长军 岳海荣 梁斌 |
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| 作者单位： | 1. 四川大学化学工程学院, 四川 成都 610065;2. 四川大学新能源与低碳技术研究院, 四川 成都 610065 |
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| 基金项目： | 国家重点研发计划项目（2018YFB0605700）；中国石油化工股份公司合作项目（15H0493）。 |
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| 摘 要： | 针对当前固体胺CO2吸附剂存在吸附容量小、循环稳定性差等问题，采用高比表面积、易嫁接胺的介孔SBA-15作为载体，研究分子筛模板剂脱除方法和有机胺改性方法对制备的固体吸附剂吸附性能的影响，并采用N2物理吸附、X射线衍射、红外光谱、热失重分析等表征技术并对样品进行表征。实验结果表明，通过嫁接和浸渍能够合成出不同有机胺负载量的胺功能化吸附剂，其中混合胺嫁接法改性的APTES-SBA（U）-T60吸附剂其吸附容量最大，在75℃下的纯CO2气氛中吸附量达到192.05 mg/g，优于溶剂萃取和煅烧法去除模板剂。此外，混合胺嫁接法制备的样品在多次的吸/脱附操作下，CO2吸附稳定性良好，表明混合胺修饰的吸附剂具有很好的稳定性和再生性。
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| 关 键 词： | 二氧化碳 二氧化碳捕集 吸附剂 胺功能化 |
| 收稿时间： | 2018-03-30 |
| 修稿时间： | 2018-06-25 |
Performance of amine functionalized mesoporous adsorbents for CO2 adsorption |
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| HE Kaiwu,TANG Siyang,LIU Changjun,YUE Hairong,LIANG Bin. Performance of amine functionalized mesoporous adsorbents for CO2 adsorption[J]. Journal of Chemical Industry and Engineering(China), 2018, 69(9): 3887-3895. DOI: 10.11949/j.issn.0438-1157.20180336 |
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| Authors: | HE Kaiwu TANG Siyang LIU Changjun YUE Hairong LIANG Bin |
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| Affiliation: | 1. College of Chemical engineering, Sichuan University, Chengdu 610065, Sichuan, China;2. Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610065, Sichuan, China |
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| Abstract: | Amine-functionalized nanomaterials have significant potential in CO2 capture technology because of their low energy consumption, stable performance, and high regeneration capacity. To improve the CO2 adsorption capacity, the high surface and mesoporous SBA-15 was used as the support for amine modification and CO2 adsorption. The adsorbents prepared with different modified methods, amines and amine content were characterized by using the BET, XRD, FT-IR, thermo-gravimetric analysis, and TG adsorption test technologies. The adsorption results showed that the grafting of mixed amine modified APTES-SBA (U)-T60 with a high adsorption capacity of 192.05 mg/g under pure CO2 at 75℃, which is higher than that of solvent extraction and calcination method. Mixed amine modified adsorbents exhibited a high thermal stability and reproducibility. |
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| Keywords: | carbon dioxide carbon dioxide capture adsorbents amine functionalization |
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